Sentences with phrase «as the breeding population»

Isle Royale National Park recently affirmed that as long as a breeding population of wolves exists on the island there would be no intervention in the near term.

In this case, much of the genetic diversity is lost as the breeding population is reduced to a small number of individuals.

Not exact matches

So if you accept that all are effectively trying to name after the same person then the count of all those permutations means that Mohammed is the most popular If you are the BBC or a Government official then you want to hide the fact that the Muslims are out breeding the indigenous population by counting each spelling as an unique instance

«It is my desire and my purpose to further the education of the people of Texas and elsewhere in wildlife conservation, in the knowledge of the breeding and living habits of our wild creatures and in the relationship of wildlife to domesticated livestock on our ranches and farms; to afford students and others interested in wildlife betterment and propagation and in the raising of wildlife along with domesticated animals a place for research and an opportunity for the study thereof; and to develop scientifically methods of increasing the wildlife population of the state and nation for the benefit of future generations... who may not have the opportunity to know and appreciate our wildlife, as I have, unless methods of increasing and conserving our wildlife are scientifically developed.

As Capital first reported, the state Department of Environmental Conservation quietly posted a plan on its website this month that would involve closing the plant for up to 100 days in the spring and summer in order to mitigate damage to Hudson River fish populations during breeding season.

In the next stage of the project we planned to broaden our interests and include markers that were able to distinguish whether a live animal had been taken from the wild or from a captive - bred population, so we were also looking for population, family, and paternity type markers as well.

The model also incorporates data on how people typically move between home, work, school, and shopping; on sexual behavior (Zika can be spread through unprotected sex); and on factors that affect mosquito populations, such as seasonal temperature swings, rainfall, and breeding sites such as caches of old tires.

Reproductive isolation is the key to understanding how new species form, and many types of barriers can divide a population and split it into two different groups: geographic (such as a mountain range, desert, ocean or river), morphological (a change in coloration, body type or reproductive organs), behavioral (a change in breeding season, mating calls or courtship actions), and others.

Dear EarthTalk: Are as many cats and dogs being euthanized these days as back in the 1970s and 1980s when indiscriminate breeding led to explosions in pet populations?

Unfortunately, as monitoring efforts continue, we may see these pretty patterns cut short: warming temperatures could deplete phytoplankton populations, which means less fish, squid, and krill for the birds to feast on, and could affect whether sooty shearwaters have enough energy to make it back to their New Zealand breeding grounds.

«Thus, the use of small populations artificially bred for desired traits, such as smaller body size or coat color, may have led to an accumulation of harmful genetic variations in dogs.»

As the world struggles to feed a growing population, shrinking maize plants through breeding might increase yields

Retaining this diversity as an option for future breeding is very important, but some of these populations are being pushed to extinction.»

The lack of contraceptive options also impacts those who care for captive populations of non-human primates such as in zoos and breeding programs.

The finding could explain the decline in the southern breeding populations, as Hispaniola has suffered severe deforestation, says Rubenstein.

This information has a variety of implications for corn breeding as well as management practices like plant population.»

In the case of the passenger pigeon, Hung and his colleagues concluded that the population of breeding birds was roughly 330,000 on average, falling to as few as 50,000 birds at points in the last million years.

Yet body mass, an important component of the physiological state of an organism, can affect key life - history traits such as survival, chick mass and breeding success and population dynamics.

The only examples of such sustainable hunting, however, are either among people who have almost no contact with other human beings, such as the indigenous Aché people in the forests of eastern Paraguay, or those who have already killed off local populations of slow - breeding animals as is evidenced in the bushmeat market in Takoradi, Ghana.

In recent decades, as the Antarctic Peninsula has warmed around him, Bill Fraser has pieced together these myriad factors that have caused Adélie populations in his study area to decline by more than 80 percent, falling from roughly 35,000 breeding pairs in 1974 to 5,600 today.

The study compiles data from 20 years of field studies and suggests that if current trends continue, forests managed as short - rotation pine plantations will support the majority of Swainson's warbler breeding populations by the end of the 21st century.

They monitored the birds after their release, tracking their survival and breeding success, as well as collecting the same data on 36 - 110 breeding pairs per year in the original national park population.

When combined with other surveys such as the Breeding Bird Survey, it provides a picture of how the continent's bird populations have changed in time and space over the past hundred years.

«As such, when populations become small, the rate of in - breeding increases and this raises the likelihood that these genetic conditions will become evident.»

A group of Reed's colleagues went to the Appalachian Mountains to jolt the testosterone levels among breeding males in a population of small, two - toned songbirds known as dark - eyed juncos.

As this species only breeds in bamboo, unregulated overharvesting of bamboo for paper and pulp may destroy breeding habitats and have a negative impact on the long - term viability of populations.

It therefore seems important to identify the causes of population decline in rural colonies such as Canna, and find ways to conserve the birds at these sites, especially since gulls that fail to breed successfully are known to seek breeding opportunities elsewhere, including in towns and cities.»

Researchers determined the whales» current population numbers by comparing photographic shots of humpbacks in their North Pacific feeding grounds (around the Pacific Rim from California to Kamchatka) to images taken of the whales in their southern, tropical breeding areas — some as far as 3000 miles away.

«By using genetic analysis to look at how closely related individual cheetahs are, cheetah breeding projects are able to breed selectively as an attempt to reintroduce genetic variation back into the population.»

The duskywing doesn't fly as well, and it eats oak leaves only as a caterpillar, so many populations may live in particular Garry oak sites like little islands, never breeding with butterflies from the next savanna over.

Since enough of these cats were brought over in the 60's and 70's as pets that a breeding population survived from escaped or released animals.

Best known for their migrations between breeding and wintering sites throughout North America, these butterflies are also found in non-migratory populations in places such as southern Florida.

This has been shown to have a small but significant impact on population size by increasing the number of breeding birds, as well as influencing the sex ratio.

For long - lived birds such as Common Terns, adult survival likely drives population trends more than breeding productivity, so identifying causes of mortality is crucial for effective conservation.

In addition, in collaboration with Irwin Goldman, Claire developed eight intellectual - property - free populations of carrot germplasm based upon market and color classes and released them as OSSI - Pledged varieties, thus providing ideal sources of material that all interested can use to breed new open source carrot varieties.

Because the earth people and the moon people would be two independent breeding populations, they could be classified by evolutionists as two separate species.

As previous population estimates did not take account of 16 of the 46 colonies (see Figure 3), and many previous counts were of poor quality and widely separated in time [11], [12], [23] these historical estimates can not be considered representative of the total breeding population of emperor penguins (previous counts are given for comparison in Table 1).

Many remnant populations of animals in the wild and in captive breeding programs are facing what is called an «extinction vortex,» as inbreeding forces them into an accelerating loss - of - fitness spiral.

But, as a precautionary measure, a captive breeding program was launched to establish a back - up population to safe - guard the species» survival.

As a punctuation perfectionist, Truss considers herself part of a rare breed, and she expected her book, Eats, Shoots ∧ Leaves: The Zero Tolerance Approach to Punctuation, to interest only a tiny segment of the British population when it was first published in the U.K. last year.

The City of Tulsa, recognizing the need to promote spay / neuter as an effective means of population control, recently launched its «Paws & Think» campaign, urging citizens to stop and think about the consequences of irresponsible breeding and accidental litters.

Mosquitoes breed in standing water, so hot weather, precipitation and flooding — as in the case of spring 2011 — can cause shifts in mosquito populations.

High - risk animals include dogs and cats less than six months old, bully breeds of dogs (as these breeds account for a significant portion of the intake population at Young - Williams) and «community» or feral cats.

The National Canine Research Council states that despite a lack of concrete evidence linking specific breeds to a higher rate of dog bites, as well as an outright lack of success in reducing the number of dog - bite related injuries, BSL is incredibly expensive for the communities affected by it, draining resources that could otherwise be used to promote more humane and effective forms of population control and in turn, reduce overcrowding in shelters.

«Because all breeds are susceptible to genetic disease, rare breeds, such as the Drents, have fewer numbers of available breeding dogs and are therefore more susceptible to inherited conditions simply because of population constraints», said Lisa G Shaffer, PhD, CEO of Paw Print Genetics and the lead scientist on the study.

As the UK's Royal Society for the Protection of Birds notes, in refreshingly straightforward language: «Despite the large numbers of birds killed, there is no scientific evidence that predation by cats in gardens is having any impact on bird populations UK - wide... It is likely that most of the birds killed by cats would have died anyway from other causes before the next breeding season, so cats are unlikely to have a major impact on populations.»

The breeds that are eligible to compete are determined by the American Kennel Club based on population and geographic distribution, as well as growing interest by the breed's parent club.

This provides a way to accurately track numbers as the breed's population grows.

Nevertheless, Mead concludes, «there is no clear evidence of cats threatening to harm the overall population level of any particular species... Indeed, cats have been kept as pets for many years and hundreds of generations of birds breeding in suburban and rural areas have had to contend with their predatory intentions.»

OptiGen is able to provide updates on the actual frequency of the risk allele in the population as more widespread testing of the breed occurs.